A. B. I Br2, CCl4 Br₂, H₂O Br2, CCl4 Br₂, H₂O

Q: How would you prepare 70.0 mL of 0.400 M HNO3 from a stock solution of 4.00 M HNO3? What volume (in…

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Q: Ca(OH)2(s) + H₂O(1) Ca2+ (aq) + 2OH(aq) (exothermic) Ca(OH)2 heat 20H □ Ca2+ H₂0 none QUESTION 23…

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Q: Determine the enthalpy of reaction for PO₁ (s) + 6PCI(g) → 10POCI,(g) P (s) + 6CI,(g) →→ 4PCI,(g) AH…

A: First Of all, no. Of Moles have to be calculated. Then Enthalpy change of the reaction is…

Q: What is the molality of a solution that has been prepared by mixing 52.1 g of sodium chloride with…

A: Molality is defined as number of mole of solute divide by weight of solvent in kg

Q: 1. Give the equation for the dissociation of dimethylamine, (CH3)2NH, in water. b. Write the Kb…

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Q: What is the molarity of a solution that was prepared by dissolving 16 g of sodium hydroxide in 320…

A: Molarity is defined as number of mole of solute divide by volume of solution in liter.     Mole is…

Q: 1 Student Worksheet 5.4A Extra Practice Questions: Gravimetric Stoichiometry Complete the following…

A: Answers:- 1) Mass of iron oxide = 718.18 g 2) Mass of precipitate (Ag2S) = 1.45 g  3) Mass of water…

Q: Cinnabar, mercury(II) sulfide, HgS, is mined as a primary source for elemental mercury. a. What is…

A: Given :  Mass of HgS = 7.5 x 105 kg  Also, atomic mass of mercury = 200.6  Molecular mass of HgS =…

Q: A mole of perfect monoatomic gas is expanded adiabatically and reversibly from 1 bar and 300K to 0.1…

A: Here we need to calculate the entropy change of adiabatic reversible expansion. The pressure is…

Q: Most elements follow the. like they have however, only has room for a feel of d. Indicate the number…

A: Statement:- Most elements follow the octet rule when sharing the electrons so that they feel like…

Q: A chemist prepares a solution of potassium chloride   KCl    by measuring out  0.23g  of  KCl…

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Q: Br H3C CH3 a b с ionization d 1-propanol e Prelab Question #4 Homework Unanswered H H 8+ With…

A: We have to tell about the given reaction mechanism. We have to tell, among the given statements,…

Q: For option a), if the methyl group is present, does this mean the reaction has been completed or is…

A: We need to look at the functional group transformation as the reaction progresses. IR spectroscopy…

Q: Identify te following compounds based on the spectra given.

A: The given problem provides NMR (1H and 13C), IR and mass data to elucidate the structure of a…

Q: A chemist makes 580.mL of iron(III) bromide FeBr3 working solution by adding distilled water to…

A: The concentration of solution made by adding water is calculated using the dilution law.

Q: You have a sample of krypton (Kr) that contains 1 mole of atoms. If the diameter of a neon atom is…

A: Given diameter of Krypton(Kr) ( it should be Krypton not neon) = 202 pm  1 mol Krypton= 6.022 × 1023…

Q: Draw the structure of the product obtained when this amine is treated with excess iodomethane and…

A: The given amine is-

Q: ABC 1) What conditions must be met for q buffer effectiveness? 2) Write out an equation that shows…

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Q: The first two particles emitted in the decay series for Bismuth (Bi)-210 are beta and then alpha.…

A: Bismuth has an atomic number of 83 and mass number of 210. Alpha decay is a nuclear decay process in…

Q: The temperature of a 500. mL sample of gas increases from 150. K to 350. K. What is the final volume…

A: Initial volume of gas ,V1 = 500 ml = 0.500 L  (1 L = 1000 ml )  Initial temperature  ,T1 = 150 K…

Q: How many grams of KOH are present in 34.0 mL of a 7.34 M KOH solution? Round your answer to 3…

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Q: QUESTION 13 The density of an unknown gas in a 1.00 L container at 735 torr and 25°C is 1.74 g/L.…

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Q: NaOH Lot la = ora H + Me -H₂O 2 3 MeO EtO 4 EtOH, NaOH reflux, 1 h Me MeO EtO MeO 5 Me

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Q: Cesium (Cs) and Sulfur (S) bond together ionically. Predict the most likely ions for Cs and S, Write…

A: Electropositive element loose electron to attain inert gas configuration, similarly Electronegative…

Q: Calculate the volume in mL of a solution required to provide the following: Part 1 of 3 2.84 g of…

A: Volume = No. of Mole / volume

Q: Which of the following compounds is the most acidic? О НО O ОН ОН ОН

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Q: A 9.13-g sample of vanadium is heated to 99.10 °C and is then placed into 20.0 g water in a…

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Q: Calculate the molarity of each of the following solutions. Part 1 of 3 (a) 18.0 g of ethanol…

A: Molarity is defined as the number of moles of solute per liter of solution .So, Molarity = Number…

Q: How many moles of water does a bottle of 799 ml Hydrogen peroxide solution of 20.00% (v/v) contain?…

A: Given:  Volume of hydrogen peroxide solution= 799 ml  v/v % of solution= 20.00%  Density of water=…

Q: How would this question change if the question stated that the unknown organic acid contains 1…

A: •As here in above solution we are applying:-                     M1V1 = M2V2 •Here actually we are…

Q: (a)How many moles of CO2 can be produced from a reaction with 4.15 moles of CO? How many moles of O2…

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Q: Draw the major product formed in the reaction. Be sure to draw a hydrogen on any heteroatoms, where…

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Q: An atom has an electron configuration of 1s²2s²2p 3s²3p³. How many valence electrons does the atom…

A: For a main group element, the valence electrons are the electrons present in the electronic shell of…

Q: A 2.50 L solution contains 5.00 g of NaOH, which has a molecular weight of 40.00 What is the molar…

A: Molarity is defined as number of mole of solute divide by volume of solution in liter

Q: Using the following bond energies, calculate the molar heat of hydrogenation, AHhydrogenatio…

A: Bond strengths given;  C-H = 411 KJ/mol  H-H= 432 KJ/mol  C -C = 348 KJ/mol  To calculate the heat…

Q: A volume of 30.2 mL of a 2.16 M KMnO4 solution is mixed with 12.7 mL of a 0.492 M KMnO4 solution.…

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Q: Calculate the volume in milliliters occupied by one molecule of ethyl alcohol, C2H5OHC2H5OH, in a…

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Q: 8. What is the maximum number of electrons that can be identified with each of the following sets of…

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Q: Calculate the pH of a 0.297 M weak base solution that has a pKb of 9.12

A: Given ->  pKb = 9.12  Concentration= 0.297 M

Q: For the following reaction, 4.40 grams of ethylene (C₂H4) are mixed with excess hydrogen gas. The…

A: Actual yield of ethane= 3.21 g  Given mass of ethylene = 4.40 g  Molar mass of ethylene = 28.05…

Q: When gasoline burns in a car engine, CO₂ and H₂O are produced and push the pistons outward. Excess…

A: According to the question, The Burning of gasoline in the car engine releases heat and causes the…

Q: A buffer solution contains 0.442 M CH3NH3Cl and 0.294 M CH3NH₂ (methylamine). Determine the pH…

A: we have to calculate the pH change

Q: 3. H₂(g) + (1/2)O2(g) →H₂O(g)

A: Bond energies:  H-H = 436 KJ/mol  O=O  = 498 KJ/mol  O-H = 464 KJ/mol  First we will make the…

Q: Calculate the concentration (in molarity) of an NaOH solution if 25.0 mL of the solution is needed…

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Q: 3. Assume that toluene and hexane form an ideal solution. At 365 K pure toluene has a vapour…

A: This problem can be solved by using Raoult's law as shown below:-

Q: blem 11.58 The half-life of mercury-197 is 64.1 hours. 40°F Sunny Y Part A If a patient undergoing a…

A: According to the question we have, The half-life (t1/2) for the mercury-197 is given by = 64.1 hours…

Q: 2) what starting materials and reagents could form the indicated product? Fill in reaction, account…

A: i) reduction of ketone ii) nuclephilic substitution iii) addition reaction in double bond iv)…

Q: Cy-dye has multiple applications in biological imaging. The energy of the photons emitted by Cy-dye…

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Q: 3.. What is the likely charge of each of the ions formed by the following atoms? As Rn In Br Mg. Ge…

A: we have to determine the likely charge on the ions formed by the given atoms

Q: How many moles of potassium hydrogen phthalate KHC6H4(CO2)2 is present in 0.1 M, 150 mL solution?…

A: Given data:  Molarity of given solution = 0.1 M = 0.1 mol/L  Volume of Solution = 150 ml = 0.150 L…